Mets RHP Seth Lugo allowed three runs (one earned), four hits and three walks in five innings in Monday's 6-4 loss to the Pittsburgh Pirates at Citi Field.
Lugo (2-3) threw 99 pitches, his second-most this season, largely because of three errors that prolonged innings.
Third baseman Luis Guillorme, who came up in the minors as a shortstop, made two errors that led to two unearned runs, while second baseman Asdrubal Cabrera made an error on a grounder in a 22-pitch fifth inning that effectively ended Lugo's night.
"It's unfortunate," manager Mickey Callaway said. "It cost Lugo about 24 pitches and probably affected tomorrow too."
Guillorme misplayed a Starling Marte grounder in the first inning that allowed him to reach first. Marte stole second when Devin Mesoraco's throw went into center field, advanced to third on a groundout and scored on Josh Harrison's sac fly that gave the Pirates a 1-0 lead.
Guillorme's two-out throwing error in the third inning allowed Harrison to reach second. After an intentional walk, Elias Diaz hit an RBI single to left field that gave Pittsburgh a 3-0 lead.
"I just didn't make the plays," Guillorme said after the game. "Nothing behind it; it just didn't go my way. ... It is a different position but you just got to make adjustments."
The only earned run with which Lugo was charged was a Gregory Polanco solo home run in the second inning.
Josh Bell reached on Cabrera's error in the fifth inning. Lugo retired the next to batters, then allowed a single and a walk before getting Polanco to pop out with the bases loaded to end the inning.
It's the second straight outing in which the Mets defense let down Lugo. In his previous outing against the Colorado Rockies, Lugo allowed six runs (three earned) in only three innings, his shortest outing of the season as a starter.
Lugo started the year with a 1.77 ERA through his first 23 games (two starts), but over his last three games (two starts), he has a 6.23 ERA and a 1.85 WHIP, giving up 14 runs (nine earned), 18 hits and six walks in 13 innings.